STP Gas Booster 500

STP Gas Booster 500

RIDGEWAY, VA – APRIL 07: Driver Denny Hamlin looks on from his pit box as Mark Martin, driver of the #11 FedEx Freight Toyota, drives his car during the NASCAR Sprint Cup Series STP Gas Booster 500 on April 7, 2013 at Martinsville Speedway in Ridgeway, Virginia. (Photo by John Harrelson/Getty Images)

RIDGEWAY, VA – APRIL 07: Driver Denny Hamlin looks on from his pit box as Mark Martin, driver of the #11 FedEx Freight Toyota, drives his car during the NASCAR Sprint Cup Series STP Gas Booster 500 on April 7, 2013 at Martinsville Speedway in Ridgeway, Virginia. (Photo by John Harrelson/Getty Images)

Greg Engle